..Our results indicate that shallowly flooded rice fields are potential hotspots for MeHg bioaccumulation and, due to their global prevalence, suggest that agricultural wetlands may be important contributors to MeHg contamination...

..Further, these results suggest that Hg exposure in wading birds is driven by complex relationships between wading bird behavior and life stage, landscape hydrologic patterns, and biogeochemical processes...

Mercury correlations among six tissues for four waterbird species breeding in San Francisco Bay, California, USA

..Finally, our results suggest that blood is an excellent, nonlethal predictor of Hg concentrations in internal tissues but that feathers are relatively poor indicators of Hg concentrations in internal tissues...

Mercury bioaccumulation and risk to three waterbird foraging guilds is influenced by foraging ecology and breeding stage

..Our results indicate that THg concentrations induced oxidative stress in terns, and suggest that histopathological, immunological, and behavioral effects may occur in terns as reported in other species...

..We hypothesize that malpositioning of avian embryos may be one reason for mercury-related hatching failure that occurs late in incubation, but further research is needed to elucidate this potential mechanism...

Mercury demethylation in waterbird livers: dose-response thresholds and differences among species

Collin A Eagles-SmithDavis Field Station, Western Ecological Research Center, US Geological Survey, University of California, Davis, California 956161, USAEnviron Toxicol Chem 28:568-77. 2009

..Further, we provide strong evidence for a threshold of approximately 8.5 microg/g dry weight of THg in the liver where demethylation is initiated...